Answer:
Taking it was dropped with inital velocity of 0m/s.
v = u+at
v = 0 + 9.8*1.5
v = 14.7s
(a=9.8m/s^2 << That's the acceleration due to gravity)
Explanation:
Answer:

Explanation:
According to Coulomb's law, the force of attraction between two point charges,
and
, separated by a distance
is given by

is a constant with a value of
.
When we substitute the values from the question,

This value is negative because it is in a direction towards the positive charge.
The work done in moving the electron from the nucleus is


This is negative because work is done on the electron, not by it.
Answer:

Explanation:
Given data

To find
Kinetic Energy
Solution
The moment of inertia is given as:

The angular acceleration is given as:

Now the angular velocity is given by:

So the kinetic energy given as:

tar is very thick and viscous making it difficult to pour when cold which is why it's heated to extremely high temperatures when blacktop is being poured
Equal because the book is not moving and the forces are balanced/equal